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习题练习:Physics Unit11: Vibrations and Waves

 作者: physics 发布日期: 2022-08-06 21:32   总分: 99分  得分: _____________

答题人: 游客未登录  开始时间: 22年08月06日 21:32  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The time for one cycle of a pfb.ynytw x 81/eriodic process is called the

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a periodic process, the number of cycles per unit time is called x ctp 16 hb *f:rx uy+9w utha8;*ekwe:d9r/pjthe

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For vibrational motion, the mx) jcdya..lgcw3w)m4 +a gjo2-x u ha/aximum displacement from the equilibrium point is called j4- x/ .l3ca+ mcowg) uaay2whjx.gd)the

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoes SHM. When the mass is at its maximum dis5 7ra - 7hrga)aw);afm l9afmsplacement from equilibriu)m7r5l-w r)mhaf ga;97a sf aam, its instantaneous velocity

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoes SHM. When the mao k8bq:bg y1o;ss passes through the equilibrium positiogyb ;1q b8oo:kn, its instantaneous velocity

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoes SHM. When the ma. zzmzwq-47 hdss is at maximum displacement from equilibrium, its z7zhz-m .wdq4instantaneous acceleration

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobs up an ,bb a/.afjg(si7b/c+ 7vjlnjd down between points A and B. Where is the mass located when its kineti(la gbi .j7/n+ jba7fsb,vjc/c energy is a minimum?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and by) :-0v,gg7sq7sm: fbogrhbr obs up and down between points A and B. Where is the mass located when its kins:0h :g7fb mbg r,qo)sr7y-gv etic energy is a maximum?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobs up and down between points A an-g npjv +bm54kd B. Where is the mass located when its potential energy is a min m 5bp-gjk+4nvimum?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a vertical spring and bobs up and down between points5l-btcy(ta q-+iq (fy,u n1gf A and B. Where is the mass located when ig,f ac (1 yyqbu5t+(f-q- ilntts potential energy is a maximum?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the amplitude of a vibrating mass-and-sprak7ayy6 *0ou16qcwgdq iw c0lg4kx(4 ing system produces what effect on the system's mechanical6i0*qywyg4a g 1k7q4 kcc6a dxuo(0lw energy?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the mass of a vibrating mass-and-spring systew(bzvb t+ 2cvaj4 1wa;m produces what effect on thea ca2;+bwj4w(vz 1btv system's mechanical energy?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Doubling only the spring constant of a vibrating mass-and-spring system produgr o52tk:w go px+l6q2ces what effect on the system's mechanic: k6g2xt5gr wp l2ooq+al energy?

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass oscillates on the end of a spring, both ot w ,9/s+mn)7 klhhagxn Earth and on the Moon. Where is the period tha+lh/tx 7hgm ,s9nw k)e greatest?

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the spring constant k of a mass-and-spring system causes what kind or)0aj1,tx e bw)eykelx.5 tpv4x:+b ef change in the resonant xevt e5ta)p: je.el,ywb0r bx)+k14 xfrequency of the system? (Assume no change in the system's mass m.)

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the mass M of a mass-and-spring system cause/ i f rp*5uzl-x/k*dnjs what kind of change in the resonkf zxu*j- dip/5l r/*nant frequency of the system? (Assume no change in the system's spring constant k.)

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the amplitude of a mass-and-spring syst l /fuohq(3:;yiuqso9em causes what kind of change in the resonant frequency of the system? (Ass ;hqu/9y3foq:isu ol(ume no other changes in the system.)

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass $m$ hanging on a spring has a natural frequency f. If the mass is increased to $4m$, what is the new natural frequency?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple pendulum consists of a mass M attached to a weightless s,) e8rvelobp 6tring of length L. For this system, when undergoing smbp er 6vel,)o8all oscillations

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the mass of a simple pendulum is tripledpio/7 ,wgsf y0, the time required for one complete vibratioy/i0,7spf w gon

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Both pendulum A and B are 3.0 m long. The period of A is T. Pend(,em r5u3n08j ydj 6hath wec2ulum A is twice as heavy as pendulum B. Wj d(8aey6 thmj w,2c03 5uhenrhat is the period of B?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the length of a simple pendulum is tripled, the time for- s-m o bramc,axdd y-6c04/yk one complete vibration increases by a factor-/ odkc0,bryds4-- 6yxcmama of

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to a simple pendulum's frequency if both its length and mass are in,252:ic fk1:hj izmt5am v dlqcreasmfc5lv :q jimz,12d25tk a: hied?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Simple pendulum A swings back and forth at twice the frequenccc1+n-uu oqj4+7x,zzb( ywdxy of simple pendulum B. Which statement is correct?jzdzucnq+7c1x o+,w (-uyx4 b

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you take a given pendulum to the Moon,x .:o:h hyrgtbvq57fmy:6/j x where the acceleration of gravity is less thart:xybg: m7 fjqy:x.h o/vh65n on Earth, the resonant frequency of the pendulum will

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve A in Fig. 11-1 reprzf7g+ yenn. -bdy ,5xuesents


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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve B in Fig. 11-1 repre4 a,9 i 5rg he+)khwvxwnck*ro)7, cwusents


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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Curve C in Fig. 11-1 represent5 g cs+sfc0ka7*z sw5js


本题所包含的其它图片:

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a forced vibration, the amplitude of vibration is found to depend on i0764mmk chwbthe

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a wave, the maximum displacement of pll fv4m4 3x)+ify0fx joints of the wave from equilibrium is callxl+jx)4 i3yffmvfl4 0 ed the wave's

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The distance between successive crests on a wave is called th- pmh2bkn s-:kd y/ 4d0d+dk. qu*kp gkk(km9he wave's

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of crests of a wave w a7,v6js 5xwhpassing a point per unit time is called the wave'vw6wxja,s 7h5 s

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For a wave, the frequency timeyf)o jzofbvlj//a;w**zr7y 7 s the wavelength is the wave's

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The frequency of a wave incrlq07wmz(7- ei tpw7eveases. What happens to the distance between successive w(m wvlti7 e-zp7qe70 crests if the speed remains constant?

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A wave moves on a string with wavelength l and frequency f. A second wave on q :nwp,24a. -c7e:vlew jlnh yk.yfr 5the same string has wavelength 2l and travels with the same velocity. What is thl::y5 cnwwkyp.2ev. ljr- ,f 7he4qna e frequency of the second wave?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a traveling wave on a string of length L, m;xdvae qd.q (ig9 *q4iass M, and tension T. A standing wadi4*;9g(. ie q vqadqxve is set up. Which of the following is true?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m and length L is under tenk27 o pstu-t/cqlj:dyu ry5*6sion T. The speed of a wave in the string is v. What wi 6 y*:j7kyl2rto-qu/ pdtuc5sll be the speed of a wave in the string if the mass of the string is increased to 2m, with no change in length?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m and length L is under6:6 c ,qujfc.6+.rsdpaefhwc tension T. The speed of a wave in the string is v. What will be the speed of a wave in the string if tf.d6sj:u q,hr 6c fepcwca .+6he length is increased to 2L, with no change in mass?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of mass m and length L is under tension T. The speed of a wznwxu)p: s i :69a1zgtave in the string is :zwni9gtuap 1 zs:)x6 v. What will be the speed of a wave in the string if the tension is increased to 2T?

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In seismology, the S wave is a transverse wave. As an S wav-6ae ,yzw 0pmhe travels through the Earth, the relative motion between the ey6ph-w amz,0 S wave and the particles is

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In seismology, the P wave is ircewmm (+s 3.ug86cg a longitudinal wave. As a P wave travels through the Earth, the relative motiguwm38 csr. e(6+mcgion between the P wave and the particles is

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The intensity of a war:6mg 8hdq7ngnwp37 ive is

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A wave pulse traveling to the right along a thin7x l xo3w*aa7q cord reaches a discontinuity where the rope becomes thicker and heavier. What is the orientation of the reflected and transmitl7a*7w a3o xqxted pulses?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two wave pulses with equal posij)h mf gh/*lpc3qx/.j:b f0 k:zg *iautive amplitudes pass each other on a string, one is traveling toward the right and the other toward the left. At the point zg*m *xj)baik ://fp3lh 0f.:ch uqgjthat they occupy the same region of space at the same time

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two wave pulses pass ea evd2 yot(n9m .ves2u t3gd8r+h0:hknch other on a string. The one traveling toward the right has a positive amplitude, while the one traveling toward the left has an equal amplsmh:t( uovdd g.yn0e2ekt+8 2 9v3nhritude in the negative direction. At the point that they occupy the same region of space at the same time

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Resonance in a system, such as a s3 gba3jqy 62zbgli*w7tring fixed at both ends, occurs when

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If one doubles the tension in a violin string, the fundamental frequency ot6+fbfx+ cis f1t mc3+f that string will incream++fcsf1 c36tibf +xt se by a factor of

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the spring constant of a spqf(chih-ir-gvj183eoc2; 7 ;uvbigc ring that stretches 2.00 cm when a mass of 0.600grvh8bj1vhoc7c - i-ige i; cq(;f 23u kg is suspended from it?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a n:n r 9-sz0ffmspring of spring constant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a for09fm zf-nr ns:ce of 5.0 N on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the amplitude?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring of spring constant 60 N/m along a horizontal, n4jbn.p jk 61africtionless s n4nkp .j1jba6urface. The spring is initially stretched by a force of 5.0 N on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the period of oscillation?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring of spring constantdv0b46i*x 1y zq9ybt e+cb.lzq nz/s8 60 N/m along a horizontal, frictionless surface. c0 tznby/*x84.by e bv1ql z+6 diqs9z The spring is initially stretched by a force of 5.0 N on the mass and let go. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the frequency of oscillation?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass on a spring undergoes SHM. It goes throut r7.wqt zmp:m t(on;tul kb; 8*14lwdgh 10 complete oscillations in 5.0 s. Whatmko tn;d1;(tprw4mw 7u8 t z*qbt:l .l is the period?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass vibrates back and forth from the free end of an ideal sprin0up6lgh1gg-j g q ..tlg of spring constant 20 N/m with an amplitude of 0.30 m. What is the kinetic energy of this vibrating ma-gl1qlht0jpg6. gg u. ss when it is 0.30 m from its equilibrium position?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attached to a spring of spring constant 20dmc ny85e1x-6 :xllupx wm(t * N/m along a horizontal, frictionless surface. The object oscillates in simple harmol:lx8 cnm*t6p-x u ( 1mdx5eywnic motion and has a speed of 1.5 m/s at the equilibrium position. What is the total energy of the system?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass undergoes SHM with amplitude ofbc cnn: uhz) a0g(9edeqgb uf f5f+,56 4 cm. The energy is 8.0 J at this time. The mass is cut in half, and the systeqe ( +g ff9)0nn:5cezf hdb uc,65augbm is again set in motion with amplitude 4.0 cm. What is the energy of the system now?

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is att1 akf4g, ,g(uwgx x(m 0)bczirhzu5*gached to a spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed0zwx1i r uz(, a(*)g4 g5gx,bkmc fuhg of 1.5 m/s at the equilibrium position. What is the amplitude of vibration?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.50-kg mass is attached to a spring of spring co xfll,3f,ct(za q5w gykrm++h-;t8 y enstant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5 m/s at the equilibrium position. At what location are the kinetic energy and the potentitk( fymlag wf,zth;r5xql , e+3 +8-cyal energy the same?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is attached to thug79kuyl d9w4kc d78xe end of a horizontal spring of spring constant 50 N/m and set into simple harmonic motion with an amplitude of 0.10 m. What is the total mechanical9xd lud4w g9kky7 u78c energy of this system?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is attached to the end of a horizoo:ymf b- g71x eqx.+qyntal spring of spring constant 50 N/m and set into simpg7yob+ -f1q yme qxx:.le harmonic motion with an amplitude of 0.10 m. What is the total mechanical energy of this system?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass vibrates back and forth from the fr) f9gg1eo bi c.,)snetee end of an ideal spring of spring constant 20.0 N/m io1 egs) bgnce)f9,.twith an amplitude of 0.250 m. What is the maximum kinetic energy of this vibrating mass?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The mass of a mass-and-spring system is displaced 10 cm from its equilp*l*b 1.ni euaczoldn8l-)l onk92 :a y1vj -aibrium position and released. A frequency of 4.0 Hz is observed. What frequency would on.ndl ni l-bl)2a:py*uvakc- 8l 9ae11*ojz be observed if the mass had been displaced only 5.0 cm and then released?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-kg object is attached to a spring of spring mbf // z8,t 04redztdwconstant 10 N/m. The object is displawfddett4z0/8b /z, m rced by
5.1 cm from the equilibrium position and let go. What is the period of vibration?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-kg object is attached to a spring of spring constant 10 N/m. T 7 hz ot lwp-(jam0)6l21ggliihe object is displaced )ioh12pw7-tm6lzjgl g(a0liby
5.1 cm from the equilibrium position and let go. What is the frequency of vibration?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-kg mass is hung from a iam gduc81 -o., -x )f6jt1vmpjb7wm aspring of spring constant 18 N/m, displaced slightly from its equilibrium position, and released. What is the frequency of its vibratiomjup)ftiwvc d16j.-b-x71 8m g,om aan?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass is attached to a spring. It oscillates at a frequency of 1.27 Hz3e)qf84 yv. q;pii svk when displaced a distance of 2.0 cm from equilibrium and released. What is the maximum velocity av 4fq.pvi8ykiq;3e) s ttained by the mass?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two masses, A and B, areklk+bh2g .aa49oi 5 /sfwr/pj attached to different springs. Mass A vibrates with amplitude of 8.0 cm at a frequency of 10 Hz and mass B vibrates with amplitude of 5.0 cm at a frequency of 16 Hz. How doe49p .2g/o/s hikl arwjkb5 a+fs the maximum speed of A compare to the maximum speed of B?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended on a spring. In equilibe6es*xc t6n6xrium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Calculate the period of oscillation.e x*se6 6t6xcn

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended on a spring. In equilibrium the mass stretch y7zlww7hc7xk 7(4sxy2i-w xpes the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and relwwyz7-x(7xwx7ls7 2 c ih4kyp eased from rest. Calculate the total energy of the system.

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 0.30-kg mass is suspended on a spring. In equilibrium the mass stretches the s i f :qd ptw8;(d;mxl51r/bbkqpring 2.0 cm downward. The mass is then pull b 8qfkl;wrbx(;5tp/ 1 :mdqided an additional distance of 1.0 cm down and released from rest. Write down its equation of motion.

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple h)i hs7 q1f8n 5rpgj7akarmonic motion obeys the following position versus time equation7jfns751 ar8ihk pq) g:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the amplitude of vibration?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple harmonic motion obeys the followi(1;e0mm/uhh- 5-o8u sxeplefuxj b8qng position versus time equati eem- h5o8hmx8u(-f/u; expj 10sub lqon:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the period of vibration?

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72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object in simple harmonic motion obeys the f*wg1y 8v ns6qdth*5qdc7f5et 16gs b mollowing position versus time equ 7b*ygddgsq1vm656 qsc 5 *ftthnwe18ation:
$y = 0.50 \; \sin (\pi/2 \times t)$. What is the maximum speed of the object?

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73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A mass attached to the free end of a spring executes simple h ixzm8god-:kn6o *ue 4armonic motion accoginu4*o8mo6x-e: dkz rding to the equation $y = 0.50 \; \sin (18\pi \times t)$ where y is in meters and t is seconds. What is the period of vibration?

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74#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A 1.5-kg mass attachu+0d+p :zzuroed to spring with a force constant of 20.0 N/m oscillates on a horizontal, frictionless track. At t= 0, the mass is released from rest at x= 10.0 cm. 0+oduruz:z p+ (That is, the spring is stretched by 10.00 cm.)
(a) Determine the frequency of the oscillations.
(b) Determine the maximum speed of the mass. Where does the maximum speed occur?
(c) Determine the maximum acceleration of the mass. Where does the maximum acceleration occur?
(d) Determine the total energy of the oscillating system.
(e) Express the displacement as a function of time.
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75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pendulum makes 12 complete swinmdj:tiuizgn3 ;qg+4f32qrn rh 3 a; 6vgs in 8.0 s. (a) What are its frequency and peritng4zj+6 3;3qfdn v uh2aimr;: gq3irod on Earth?

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76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 3.00-kg pendulum is 28.84 m long. What is its perijv9 )tu.z7 c/ru 4iqhxod on Earth?

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77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A pendulum has a period of 2.0 s on Earth6 /:xe0qnzju2gm(zhj . What is its length?

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78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pendulum of a grandfather clock is 1.0 m long. Whas mm*j it0h01lt is its period on the Eaj0lmhs1 *0 timrth?

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79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The pendulum of a grandfau18j;kva ty 5+ poedh4ther clock is 1.0 m long. What is its period on the Moon w4otek5;jyd8 1 +ahuv phere the acceleration due to gravity is only $1.7 \; m/s^2$?

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80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A simple pendulum consists of a 0.25-kg spherical mass attached to a massles,js ,ef q+rqioi6f9u z*s; 8)ipdbg c0s string. When the mass is displaced slightly from its equilibrium position and released, the pendulum swings back and forth with a frequency of 2.0 Hz. What frequency would have disepifqfu j)s; b6,*o 08,+griqzc9 resulted if a 0.50-kg mass (same diameter sphere) had been attached to the string instead?

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81#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A simple pendulum consisting of a 20-g mass has init shnaiw+9wj2+ynox bat9t . 18ial angular displacement of 8.0e. It oscillates with a period +hnj x o.as9n yw9itawt28+b 1of 3.00 s.
(a) Determine the length of the pendulum.
(b) Does the period of the pendulum depend on the initial angular displacement?
(c) Does the period of the pendulum depend on the mass of the pendulum?
(d) Does the period of the pendulum depend on the length of the pendulum?
(e) Does the period of the pendulum depend on the acceleration due to gravity?
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82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a given time. The frequency of tednk11l44ln4d k-mg rhe wave k kn4-l4 gl 1rd1dm4enis 120 Hz. What is the amplitude?


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83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a given time. Thetn tj+ sa(8/ryxd-c8g frequency of the wave is 120 Hz. What is tj+g sx8cat /8rndy (-the wavelength?


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84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Figure 11-2 is a "snapshot" of a wave at a gige m6)uqg ; 2vp3isfx11bk zh3o:j+usven time. The frequency of the wave is 120 Hz. What6use pqk:bi g3 j) ov xmug+2f311;zsh is the wave speed?


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85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequency of a wave wh hjblvqs vh8e 0(o4d7+ich has a period of 6.00 ms?

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86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the period of a wave witi3 4 j2bztp-jdh a frequency of 1500 Hz?

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87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the wave speed if a wave has a frequency of 12 Hz anw-fjq.sd,iv -f8bo)ewr , 8 dw al-3cgd a wavelength of 3.0 m? dc3,. d-ef-s)ij 88fvwwg,raqbol- w

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88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the velocity of a xdq9nryvd.l um83u+s,5j fm9 wave that has a wavelength of 3.0 m and a frequency of 12 lqf9y.5ud 3m8 j9sdu rn,+vmxHz?

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89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the frequency of a 2.5 m wavepy// 1lak3p56e eyc.hn m(+f w*t+wqlngjzz7 traveling at 1400 m/s?

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90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A piano string of linear mass density 0.0050 kg/m is under r6xaz;.w z2 sgti0y:c a tension of 1350 N. What is the 0.zyrs c zi;w2g:xat 6wave speed?

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91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of linear density 6.0 g/m is under a tension of 180 N. What is the veli q45jt*l alymmhcx8p:0r8 3vu.wl,bocity of propagation of transvers i 3u8bq* 5ha40lxt8mwpyvmc rj.l:l, e waves along the string?

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92#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A wave whose wavelength is 0.500 m is;;wao a 5m0*eexyerq) traveling down a 500 m long wire whose total r*eyam)5w qaxo0 ee;;mass is
25.0 kg. The wire is under a tension of 2000 N.
(a) Determine the velocity of the wave on the wire.
(b) Determine the frequency of this wave.
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93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The velocity of propagation of a transverse wave on yb 0/pde-zc(cu 1ibc1a 2.0-m long string fixed at both ends is 200 m/s. Which one of the foly/ub (101 ecpz-cdc bilowing is not a resonant frequency of this string?

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94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If a guitar string has a fundamenta8pkz,dz58zj)p tz 6mm l frequency of 500 Hz, which one of the following mtp6kpzd z,zj )88 z5mfrequencies can set the string into resonant vibration?

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95#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A stretched string is observed to hvx(h )+x i9gzvave four equal segments in a standing wave driven at a frequency of 480 Hz. What driving frequency willi9xxgvv h(z+) set up a standing wave with five equal segments?

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96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string, fixed at both ends, vibrates at a frequency of 12 )mce4owgb8pi7 dm/ 6v Hz with a standing transverse wave pattern containing 6m )87m ci4ep vbwd/go3 loops. What frequency is needed if the standing wave pattern is to contain 4 loops?

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97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A string of linear density 1.5 g/m is under a tension o af 7pxh8kf+k1f 20 N. What should its length be if its fundamental rekh1+ pfk8x fa7sonance frequency is 220 Hz?

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98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Find the first three harmonics of a string of linear mass density 2.00 g/m squ.z5s,t wsv8()in yand length 0.600 m when it is sun.sz svtq(si ,wu5y)8 bjected to tension of 50.0 N.

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99#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
A string of length 2.5 m is fixed at both enr.a7;b kkast xq,+ 8ma6ct.9qfgh wx*ds. When the string vibrates at a frequency of 85 Hz, a standing wave with five loops is formedrqk..,a6 *sa7 makxxt+gq8wbcf; ht9.
(a) Determine the distance between two adjacent nodes.
(b) Determine the wavelength of the waves that travel on the string.
(c) Determine the velocity of waves.
(d) Determine the fundamental frequency of this string.
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